136781500450 has 24 divisors (see below), whose sum is σ = 290758390272. Its totient is φ = 46896514320.

The previous prime is 136781500397. The next prime is 136781500469. The reversal of 136781500450 is 54005187631.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 195401794 + ... + 195402493.

It is an arithmetic number, because the mean of its divisors is an integer number (12114932928).

Almost surely, 2^136781500450 is an apocalyptic number.

136781500450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136781500450 is an abundant number, since it is smaller than the sum of its proper divisors (153976889822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136781500450 is a wasteful number, since it uses less digits than its factorization.

136781500450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390804306 (or 390804301 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 136781500450 in words is "one hundred thirty-six billion, seven hundred eighty-one million, five hundred thousand, four hundred fifty".